Improvement in heating and ventilating stoves



C.S. BELL. 'HEATING AND vENTI'LAT-ING s'rovE.

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UNITED TATEs PATENT OFFICE.

l CHARLES S. BELL, OF HILLSBOROUI'GH, OHIO.

IMPROVEMENT IN HEATING AND VENTILATING STOVES..

Specication forming part of Letters Patent No. l69,765, dated November 9, 1875; application filed November 525, 1874.

To all whom it may concern:

Be it known that I, CHARLES S; BELL, of Hillsborough, in the county of Highland and State ot' Ohio, have invented certain new and usefullmprovements in Heating and Ventilating Stoves; and I do hereby declare the following to be a full and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is a horizontal section ot a stove constructed in accordance with my invention; and Fig. 2, a vertical section taken ou line a: w, Fig. l.

Similar letters of reference in the accompanying drawings denote the same parts.

This invention belongs to that cla'ss of heating-stoves through which external air ispassed and heated before being admitted int-o the apartment to be warmed, thereby supplying pure heated air, instead of continually reheat- 'ing the vitiated air of the apartment.

The object of my invention is to provide a stove ot the above-named class, in which the lire-chamber shall be supplied, for the purpose of supporting combustion, with a portion of the external air heated thereby; and to this end it consists in the combination, in a heating-stove, of au air duct or iiue surrounding the tire-chamber, and adapted to conduct external air both into and around the l'ire-chamber, with a damper adapted to regulate the supply vof air to the fire-chamber, all of which I will now proceed to describe.

In the drawings, A represents the fire-chamber of a heating-stove, B the ash-pit beneath it, and C the grate. E is an annular flue or Y space surrounding the rechamber, said space being )rovided at its lower end with a suita ble air pipe or conduit extending below the floor of the apartment containing the stove, and conducting external air into the space E. The ash-pit and. fire-'chamber are connected with the space E through an openin g, F, preferably located in the upper part ot' the ashpan, and provided with a slide or damper, G, by means of which its size may be graduated. The external air from below, entering the space E, passes upward around the lire-chamber, is heated thereby, and passes outthrough suitable openings or pipes at the top, while a portion ot' it passes through the opening F into the Ere-chamber, as indicated by the arrows in Fig. 2. I am thus enabled to support combustion by the use of a portion of the fresh external air which is taken through the stove to be heated. The damper G is provided With a suitable rod projecting from the stove-casing, so as to be conveniently operated from without, and may be constructed in any desired form and located at any suitable point to admit the air to the fire-chamber below the gra-te.

I do not conne myself to the exact form and arrangement of parts which I have shown, as various modifications may be employed without departing from the spirit of my invention.

I claim as my inventionrljhe air-chamber E, surrounding the firepot A, in combination with the inlet-pipe P, register R, opening F, and damper G, all constructed, arranged, and operating substantiallyin the manner and for the purposes specified.

CHARLES S. BELL.

Witnesses:

JosIAH STEVENsoN, R. M. DITTEY. 

